<template>
    <div class="login-container" style="background-color: #141a48;margin: 0px;overflow: hidden;">
        <div id="canvascontainer" ref='can'></div>

        <Form ref="loginForm" autoComplete="on" :model="loginForm" :rules="loginRules" class="card-box login-form">
            <Form-item prop="email">
                <Input type="text" v-model="loginForm.email" placeholder="请输入用户名" autoComplete="on">
                <Icon type="ios-person-outline" slot="prepend"></Icon>
                </Input>
            </Form-item>
            <Form-item prop="password">
                <Input type="password" v-model="loginForm.password" placeholder="请输入密码"
                       @keyup.enter.native="handleLogin">
                <Icon type="ios-locked-outline" slot="prepend"></Icon>
                </Input>
            </Form-item>
            <Form-item>
                <Button type="primary" @click="handleLogin('loginForm')" long>登录</Button>
            </Form-item>
            <div class='tips'>admin账号为:admin@wz.com 密码123456</div>
            <div class='tips'>editor账号:editor@wz.com 密码123456</div>
        </Form>
    </div>
</template>

<script>
    import {isEmail} from 'utils/validate';

    export default {
        name: 'login',
        data() {
            const validateEmail = (rule, value, callback) => {
                if (!isEmail(value)) {
                    callback(new Error('请输入正确的合法邮箱'));
                } else {
                    callback();
                }
            };
            const validatePass = (rule, value, callback) => {
                if (value.length < 6) {
                    callback(new Error('密码不能小于6位'));
                } else {
                    callback();
                }
            };
            return {
                loginForm: {
                    email: 'admin@wz.com',
                    password: ''
                },
                loginRules: {
                    email: [
                        {required: true, trigger: 'blur', validator: validateEmail}
                    ],
                    password: [
                        {required: true, trigger: 'blur', validator: validatePass}
                    ]
                },
                loading: false,
                showDialog: false
            }
        },
        mounted() {
            container = document.createElement('div');
            this.$refs.can.appendChild(container);

            camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 10000);
            camera.position.z = 1000;
            scene = new THREE.Scene();
            particles = new Array();

            var PI2 = Math.PI * 2;
            var material = new THREE.ParticleCanvasMaterial({
                color: 0x0078de,
                program: function (context) {
                    context.beginPath();
                    context.arc(0, 0, 1, 0, PI2, true);
                    context.fill();
                }
            });

            var i = 0;
            for (var ix = 0; ix < AMOUNTX; ix++) {
                for (var iy = 0; iy < AMOUNTY; iy++) {
                    particle = particles[i++] = new THREE.Particle(material);
                    particle.position.x = ix * SEPARATION - ( ( AMOUNTX * SEPARATION ) / 2 );
                    particle.position.z = iy * SEPARATION - ( ( AMOUNTY * SEPARATION ) / 2 );
                    scene.add(particle);
                }
            }
            renderer = new THREE.CanvasRenderer();
            renderer.setSize(window.innerWidth, window.innerHeight);
            container.appendChild(renderer.domElement);

            document.addEventListener('mousemove', onDocumentMouseMove, false);

            window.addEventListener('resize', onWindowResize, false);
            animate();
        },
        methods: {
            handleLogin() {
                this.$refs.loginForm.validate(valid => {
                    if (valid) {
                        this.loading = true;
                        this.$store.dispatch('LoginByEmail', this.loginForm).then(() => {
                            this.$Message.success('登录成功');

                            this.loading = false;
                            this.$router.push({path: '/'});
                        }).catch(err => {
                            this.$message.error(err);
                            this.loading = false;
                        });
                    } else {
                        console.log('error submit!!');
                        return false;
                    }
                });
            },
            afterQRScan() {
                // const hash = window.location.hash.slice(1);
                // const hashObj = getQueryObject(hash);
                // const originUrl = window.location.origin;
                // history.replaceState({}, '', originUrl);
                // const codeMap = {
                //   wechat: 'code',
                //   tencent: 'code'
                // };
                // const codeName = hashObj[codeMap[this.auth_type]];
                // if (!codeName) {
                // } else {
                //   this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
                //     this.$router.push({ path: '/' });
                //   });
                // }
            }
        },
        init() {

        },
        destroyed() {
            // window.removeEventListener('hashchange', this.afterQRScan);
        }
    }

    var SEPARATION = 100, AMOUNTX = 50, AMOUNTY = 50;
    var container;
    var camera, scene, renderer;
    var particles, particle, count = 0;
    var mouseX = 0, mouseY = 0;
    var windowHalfX = window.innerWidth / 2;
    var windowHalfY = window.innerHeight / 2;

    function onWindowResize() {
        windowHalfX = window.innerWidth / 2;
        windowHalfY = window.innerHeight / 2;

        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();
        renderer.setSize(window.innerWidth, window.innerHeight);
    }

    function onDocumentMouseMove(event) {
        mouseX = event.clientX - windowHalfX;
        mouseY = event.clientY - windowHalfY;
    }

    function onDocumentTouchStart(event) {
        if (event.touches.length === 1) {
            event.preventDefault();
            mouseX = event.touches[0].pageX - windowHalfX;
            mouseY = event.touches[0].pageY - windowHalfY;
        }
    }

    function onDocumentTouchMove(event) {
        if (event.touches.length === 1) {
            event.preventDefault();
            mouseX = event.touches[0].pageX - windowHalfX;
            mouseY = event.touches[0].pageY - windowHalfY;
        }
    }

    function animate() {
        requestAnimationFrame(animate);
        render();
    }

    function render() {
        camera.position.x += ( mouseX - camera.position.x ) * .05;
        camera.position.y += ( -mouseY - camera.position.y ) * .05;
        camera.lookAt(scene.position);

        var i = 0;
        for (var ix = 0; ix < AMOUNTX; ix++) {
            for (var iy = 0; iy < AMOUNTY; iy++) {
                particle = particles[i++];
                particle.position.y = ( Math.sin(( ix + count ) * 0.3) * 50 ) + ( Math.sin(( iy + count ) * 0.5) * 50 );
                particle.scale.x = particle.scale.y = ( Math.sin(( ix + count ) * 0.3) + 1 ) * 2 + ( Math.sin(( iy + count ) * 0.5) + 1 ) * 2;
            }
        }
        renderer.render(scene, camera);
        count += 0.1;
    }
</script>
<style>
    .login-container a {
        color: #0078de;
    }
    #canvascontainer {
        position: absolute;
        top: 0px;
        width: 100%;
        height: 100%;
        overflow: hidden;
    }
</style>

<style rel="stylesheet/scss" lang="scss">
    .tips {
        font-size: 14px;
        color: #fff;
        margin-bottom: 5px;
    }
    .login-container {
        height: 100vh;
        background-color: #2d3a4b;
        input:-webkit-autofill {
            -webkit-box-shadow: 0 0 0px 1000px #293444 inset !important;
            -webkit-text-fill-color: #fff !important;
        }
        input {
            background: transparent;
            border: 1px solid #2d8cf0;
            -webkit-appearance: none;
            border-radius: 3px;
            padding: 12px 5px 12px 15px;
            color: #eeeeee;
            height: 47px;
        }
        .el-input {
            display: inline-block;
            height: 47px;
            width: 85%;
        }
        .svg-container {
            padding: 6px 5px 6px 15px;
            color: #889aa4;
        }
        .title {
            font-size: 26px;
            font-weight: 400;
            color: #eeeeee;
            margin: 0px auto 40px auto;
            text-align: center;
            font-weight: bold;
        }
        .login-form {
            position: absolute;
            left: 0;
            right: 0;
            width: 400px;
            padding: 50px 50px 15px 50px;
            margin: 120px auto;
        }
        .el-form-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            color: #454545;
        }
        .forget-pwd {
            color: #fff;
        }
    }
</style>
